I downloaded Battery Monitor Widget Pro as many advised me and while charging it sometimes says discharging yet the OS claims it's charging? anyways the main question is that when i first unplugged it, it said i would lose -2.5%/h that's pretty good once I had some processes running mainly some games and minor tasks in the background,it updated and now says -38.97%/h that's outrageous... and soon after my phone did show that by discharging 1% every 1-2 minutes.. is there anything i can do? is it the battery that has gone bad or? any help is appreciated thanks.